An issue involving software on GHP Reactor autopilots may cause the unit memory to become corrupted, which may adversely affect the autopilot's performance, up to and including making the unit inoperative. Although not reported to date in any installed systems, in rare circumstances, the autopilot may behave unexpectedly, possibly performing abrupt maneuvers. A mandatory software update for the GHP Reactor Autopilot series, which includes the 12 below listed models, is required to correct the memory corruption issue and potential performance issues, and prevent the unit from becoming inoperative. For more information and instructions on completing the software update, please visit https://www.garmin.com/en-US/legal/ghp-reactor-service-alert

Affected Products

GHP Reactor Autopilot units (SKUs listed):

010-00705-15

GHP Reactor Hydraulic Autopilot Corepack

010-00705-45

GHP Reactor Mechanical Autopilot Retrofit Corepack

010-00705-65

GHP Reactor Hydraulic with SmartPump Corepack

010-00705-71

GHP Reactor Hydraulic Autopilot Corepack for SmartPump

010-00705-80

GHP Reactor Steer-by-wire Standard Corepack

010-00705-81

GHP Reactor Steer-by-wire Corepack for Yamaha® Helm Master™

010-00705-82

GHP Reactor Steer-by-wire Corepack for Viking® VIPER®

010-00705-85

GHP Reactor Steer-by-wire Corepack for Volvo-Penta®

010-11052-60

Course Computer Unit, GHP Reactor Steer-by-wire

010-11052-61

Course Computer Unit, GHP Reactor Steer-by-wire for VIPER

010-11052-62

Course Computer Unit, GHP Reactor

010-11052-63

Course Computer Unit, GHP Reactor for Volvo-Penta

Note: The GHP Reactor model is shown on the NMEA 2000® devices settings menu on a connected GHC™ or GPSMAP® chartplotter.

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